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johnstrupite

noun
john·​strup·​ite | \ˈjänˌstrəˌpīt\
plural -s

Definition of johnstrupite 

: a mineral approximately (Ca,Na)3(Ce,Ti,Zr)Si2O8F consisting of a complex silicate of cerium and other metals in prismatic crystals (specific gravity 3.29)

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History and Etymology for johnstrupite

German johnstrupit, from Frederik Johnstrup †1894 Danish mineralogist + German -it -ite

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